import java.util.Scanner;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            String className = scanner.next();
            Base obj = (Base) Class.forName(className).newInstance();
            System.out.println(getClassName(obj));
        }
    }
    public static String getClassName(Base obj) {
        if (obj instanceof Sub1) {
            Sub1 sub1 = (Sub1) obj;
            return sub1.getClass().getSimpleName();
        } else if (obj instanceof Sub2) {
            Sub2 sub2 = (Sub2) obj;
            return sub2.getClass().getSimpleName();
        } else {
            return obj.getClass().getSimpleName();
        }
    }
}
class Base {
}
class Sub1 extends Base {
}
class Sub2 extends Base {
}